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/*-
* Copyright (c) 2015, Linaro Limited
* Copyright (c) 2000, 2001 Ben Harris
* Copyright (c) 1996 Scott K. Stevens
*
* Mach Operating System
* Copyright (c) 1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*
* $FreeBSD$
*/
#ifndef KERNEL_UNWIND
#define KERNEL_UNWIND
#ifndef ASM
#include <types_ext.h>
#ifdef ARM32
/* The state of the unwind process */
struct unwind_state {
uint32_t registers[16];
uint32_t start_pc;
uint32_t *insn;
unsigned entries;
unsigned byte;
uint16_t update_mask;
};
#endif /*ARM32*/
#ifdef ARM64
struct unwind_state {
uint64_t fp;
uint64_t sp;
uint64_t pc;
};
#endif /*ARM64*/
bool unwind_stack(struct unwind_state *state);
#if defined(CFG_CORE_UNWIND) && (TRACE_LEVEL > 0)
void print_stack(int level);
#else
static inline void print_stack(int level __unused)
{
}
#endif
#endif /*ASM*/
#ifdef CFG_CORE_UNWIND
#define UNWIND(...) __VA_ARGS__
#else
#define UNWIND(...)
#endif
#endif /*KERNEL_UNWIND*/
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